JPH029428B2 - - Google Patents
Info
- Publication number
- JPH029428B2 JPH029428B2 JP910081A JP910081A JPH029428B2 JP H029428 B2 JPH029428 B2 JP H029428B2 JP 910081 A JP910081 A JP 910081A JP 910081 A JP910081 A JP 910081A JP H029428 B2 JPH029428 B2 JP H029428B2
- Authority
- JP
- Japan
- Prior art keywords
- electron
- electron beam
- grid
- dish
- support member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010894 electron beam technology Methods 0.000 claims description 39
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
- H01J29/503—Three or more guns, the axes of which lay in a common plane
Description
【発明の詳細な説明】
本発明はカラー受像管用電子銃に係り、特に一
列配置された複数の電子ビームを螢光体スクリー
ン上に収束するための主電子レンズを形成する電
極に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electron gun for a color picture tube, and more particularly to an electrode forming a main electron lens for converging a plurality of electron beams arranged in a row onto a phosphor screen.
カラー受像管のフオーカス性能を向上させるた
めには主電子レンズの径を大きくすることが極め
て有効な手段であることは周知である。そして主
電子レンズの径を大きくすることは電極の形成を
大きくすることにより可能となるが、この様に電
極の外形を大きくするとネツク内壁との間隔が狭
くなり、耐電圧的に問題となる。また電極の外形
を変えずに主電子レンズの径を大きくするには、
複数の電子ビーム通過孔部同志が極めて近接する
ので、従来の電極では機械加工性に問題が生じて
くる。即ち仮りに従来の電極を加工した場合、逆
に機械的精度が悪くなり、結果としてフオーカス
特性が劣化することが知られている。 It is well known that increasing the diameter of the main electron lens is an extremely effective means for improving the focus performance of color picture tubes. Although it is possible to increase the diameter of the main electron lens by increasing the size of the electrode, increasing the outer shape of the electrode in this way narrows the distance from the inner wall of the neck, which poses a problem in terms of withstand voltage. In addition, in order to increase the diameter of the main electron lens without changing the external shape of the electrode,
Since the plurality of electron beam passage holes are very close to each other, machinability problems arise with conventional electrodes. That is, it is known that if a conventional electrode is machined, its mechanical precision will deteriorate, resulting in deterioration of its focus characteristics.
次に発明者らが先に出願したカラー受像管用電
子銃の応用例として考えた電子銃を第１図乃至第
３図により説明する。 Next, an electron gun considered as an application example of the electron gun for color picture tubes previously filed by the inventors will be explained with reference to FIGS. 1 to 3.
即ち、電子銃１は陰極２、第１グリツド３、第
２グリツド４、第３グリツド５、第４グリツド
６、第５グリツド７及び第６グリツド８からな
り、これら電極はそれぞれ所定長さで形成され、
また電極間の間隔もその電子銃に見合うように絶
縁支持体９に植設されている。 That is, the electron gun 1 consists of a cathode 2, a first grid 3, a second grid 4, a third grid 5, a fourth grid 6, a fifth grid 7, and a sixth grid 8, and each of these electrodes is formed with a predetermined length. is,
Further, the spacing between the electrodes is set on the insulating support 9 so as to correspond to the electron gun.
このカラー受像管用電子銃１は第３グリツド
５、第４グリツド６及び第５グリツド７により、
ユニポテンシヤル型電子レンズを形成し、また第
５グリツド７と第６グリツド８により、バイポテ
ンシヤル型電子レンズを形成する複合レンズ系を
有する電子銃であり、カラー受像管の螢光体スク
リーン上に極めて品位のよいスポツトを形成し、
コントラストの良好な画像を再現し得る電子銃で
ある。 This color picture tube electron gun 1 includes a third grid 5, a fourth grid 6, and a fifth grid 7.
This electron gun has a compound lens system that forms a unipotential type electron lens and a bipotential type electron lens by the fifth grid 7 and the sixth grid 8. Forms a high quality spot,
This is an electron gun that can reproduce images with good contrast.
この電子銃１に於て、第５グリツド７はその長
さが比較的長く、また第６グリツド８との間に大
口径の電子レンズを形成するため、第２図に示す
ような厚肉有孔板状部材７ａと、この有孔板状部
材７ａを支持する第３図に示すような皿状有孔支
持部材７ｂとからなる電極素子を皿状有孔支持部
材７ｂの底部１０が互いに当接する様に２組使用
するようになつている。 In this electron gun 1, the fifth grid 7 has a relatively long length and forms a large-diameter electron lens between it and the sixth grid 8, so it has a thick wall as shown in FIG. An electrode element consisting of a perforated plate-like member 7a and a dish-like perforated support member 7b as shown in FIG. Two sets are used so that they are in contact with each other.
この様な構造にすることにより有孔板状部材７
ａには電子ビーム通過孔１１ａ，１２ａ，１３ａ
をブリツヂ１４ａ，１５ａを介して穿設する時、
このブリツヂ１４ａ，１５ａを極めて狭くするこ
とが可能であり径大とすることが可能であり、こ
の結果第６グリツド８との間に大口径の電子レン
ズを形成できる。一方皿状有孔支持部材７ｂはプ
レスで皿状に形成され、底部１０に電子ビーム通
過孔部１１ｂ，１２ｂ，１３ｂがブリツヂ１４
ｂ，１５ｂを介して穿設されるが、この電子ビー
ム通過孔部１１ｂ，１２ｂ，１３ｂは、ほぼ有孔
板状部材７ａの電子ビーム通過孔部１１ａ，１２
ａ，１３ａと同じため、比較的薄肉部材で作られ
たた皿状有孔支持部材７ｂのブリツヂ１４ｂ，１
５ｂは機械的に極めて弱く、更に両側の電子ビー
ム通過孔部１１ｂ，１３ｂと側壁部１９との間隔
２０もせまく、そのため底部１０の平坦度がわる
くなり、電子銃１として構成した場合に有孔板状
部材７ａを精度よく支持できなくなり、結果とし
て電子銃のフオーカス性能を劣化させる問題があ
る。 With such a structure, the perforated plate member 7
Electron beam passing holes 11a, 12a, 13a are provided in a.
When drilling through the bridges 14a and 15a,
These bridges 14a, 15a can be made extremely narrow and have a large diameter, and as a result, a large diameter electron lens can be formed between them and the sixth grid 8. On the other hand, the dish-shaped perforated support member 7b is formed into a dish shape by pressing, and electron beam passage holes 11b, 12b, 13b are formed in the bottom part 10 of the bridge 14.
The electron beam passing holes 11b, 12b, 13b are substantially similar to the electron beam passing holes 11a, 12 of the perforated plate member 7a.
Since it is the same as a, 13a, the bridge 14b, 1 of the dish-shaped perforated support member 7b is made of a relatively thin member.
5b is mechanically extremely weak, and furthermore, the distance 20 between the electron beam passage holes 11b and 13b on both sides and the side wall 19 is narrow, so the flatness of the bottom 10 is poor, and when configured as the electron gun 1, it is difficult to form a hole. There is a problem in that the plate member 7a cannot be supported accurately, resulting in deterioration of the focus performance of the electron gun.
本発明は前述した従来の欠点と先願の問題点に
鑑みなされたものであり、大口径の電子レンズを
形成し得ると共に電極として機械的変形を防止し
得るようにした電極を具備するカラー受像管用電
子銃を提供することを目的としている。 The present invention has been made in view of the above-mentioned drawbacks of the conventional art and the problems of the prior application, and provides a color image receptor equipped with electrodes capable of forming a large-diameter electron lens and preventing mechanical deformation as electrodes. The purpose is to provide a tube electron gun.
次に本発明のカラー受像管用電子銃の一実施例
を第４図乃至第８図により説明する。 Next, an embodiment of an electron gun for a color picture tube according to the present invention will be described with reference to FIGS. 4 to 8.
即ち、電子銃３１は陰極３２、第１グリツド３
３、第２グリツド３４、第３グリツド３５、第４
グリツド３６、第５グリツド３７及び第６グリツ
ド３８からなり、これらの電極はそれぞれ所定長
さで形成され、また電極間の間隔もその電子銃に
見合うように絶縁支持体３９に植設されている。 That is, the electron gun 31 has a cathode 32 and a first grid 3.
3, second grid 34, third grid 35, fourth grid
It consists of a grid 36, a fifth grid 37, and a sixth grid 38, each of which has a predetermined length, and is implanted in an insulating support 39 so that the spacing between the electrodes matches the electron gun. .
このカラー受像管用電子銃３１は第３グリツド
３５、第４グリツド３６及び第５グリツド３７に
より、ユニポテンシヤル型電子レンズを形成し、
また第５グリツド３７と第６グリツド３８によ
り、バイポテンシヤル型電子レンズを形成する複
合レンズ系を有する電子銃であり、カラー受像管
の螢光体スクリーン上に極めて品位のよいスポツ
トを形成し、コントラストの良好な画像を再現し
得る電子銃である。 This color picture tube electron gun 31 forms a unipotential type electron lens by a third grid 35, a fourth grid 36, and a fifth grid 37.
Furthermore, the fifth grid 37 and the sixth grid 38 form a bipotential type electron lens, which forms a composite lens system, which forms an extremely high-quality spot on the phosphor screen of the color picture tube, and improves the contrast. This is an electron gun that can reproduce good images.
この電子銃３１に於て、第５グリツド３７の構
成は厚肉有孔板状部材３７ａと、この有孔板状部
材３７ａを支持するための皿状有孔支持部材３７
ｂからなつており、有孔板状部材３７ａは皿状有
孔支持部材３７ｂのフランジ４６、植設片４７を
有する開放端縁部に接して支持され、底部４０同
志が互いに接するように構成されている。そして
有孔板状部材３７ａにはほぼ真円形状の電子ビー
ム通過孔部４１ａ，４２ａ，４３ａの幅の狭いブ
リツヂ４４ａ，４５ａを介して穿設されており、
皿状有孔支持部材３７ｂの底部４０には中央にほ
ぼ真円形状の有孔板状部材３７ａの電子ビーム通
過孔部４２ａと同径の電子ビーム通過孔部４２
ｂ、両側にこの電子ビーム通過孔部４２ｂとの間
に幅の広いブリツヂ４４ｂ，４５ｂが形成され得
るように中央の真円形状の電子ビーム通過孔部と
同一の径からなる一部４８ａを水平軸Ｘと直交す
る方向に有し、３個の電子ビーム通過孔部の中心
を通る水平軸Ｘに直角な直線辺４８ｂを有するほ
ぼ小判状の電子ビーム通過孔部４１ｂ，４３ｂが
設けられている。 In this electron gun 31, the fifth grid 37 is composed of a thick-walled perforated plate-like member 37a and a dish-like perforated support member 37 for supporting the perforated plate-like member 37a.
The perforated plate-like member 37a is supported in contact with the open end edge having the flange 46 and the planting piece 47 of the dish-like perforated support member 37b, and the bottom parts 40 are configured to be in contact with each other. ing. The perforated plate member 37a is provided with substantially circular electron beam passage holes 41a, 42a, 43a through narrow bridges 44a, 45a.
The bottom portion 40 of the dish-shaped perforated support member 37b has an electron beam passage hole 42 having the same diameter as the electron beam passage hole 42a of the substantially circular perforated plate member 37a.
b. A part 48a having the same diameter as the central perfectly circular electron beam passage hole is horizontally placed so that wide bridges 44b and 45b can be formed between the electron beam passage hole 42b on both sides. Approximately oval-shaped electron beam passage holes 41b and 43b are provided, which extend in a direction perpendicular to the axis X and have a linear side 48b perpendicular to the horizontal axis X passing through the centers of the three electron beam passage holes. .
このように皿状有孔支持部材３７ｂの底部４０
に真円形状の電子ビーム通過孔部と、電子ビーム
配列方向である水平軸方向を短径とするほぼ小判
状の電子ビーム通過孔部４１ｂ，４３ｂを設ける
ことによりブリツヂ４４ｂ，４５ｂ及び側壁部４
９と両側の電子ビーム通過孔部４１ｂ，４３ｂと
の間隔５０も広くなり底部４０の機械的強度及び
平坦度は良好となるし、また電子銃３１を組立て
る際に電子ビーム通過孔部に基準軸を挿入して組
立てる場合、この基準軸をほぼ皿状有孔支持部材
３７ｂの両側の電子ビーム通過孔部４１ｂ，４３
ｂにしておけば、直線辺４８ｂを除く部分４８ａ
が有効板状部材３７ａの電子ビーム通過孔部とほ
ぼ同一径であるので両者を完全に位置ぎめするこ
とが可能である。また皿状有孔支持部材３７ｂの
底部４０は組立後は第５グリツド３７のほぼ中間
にあり、電子レンズの形成には何ら影響を与える
ことはない。 In this way, the bottom 40 of the dish-shaped perforated support member 37b
Bridges 44b, 45b and side wall portions 4 are provided with a perfectly circular electron beam passing hole and substantially oval electron beam passing holes 41b and 43b whose short axis is in the horizontal axis direction, which is the direction in which the electron beams are arranged.
The distance 50 between the electron beam passage hole 9 and the electron beam passage holes 41b and 43b on both sides is also widened, and the mechanical strength and flatness of the bottom portion 40 are improved. When assembling by inserting the reference axis, the reference axis is inserted into the electron beam passage holes 41b, 43 on both sides of the approximately dish-shaped perforated support member 37b.
If set to b, the portion 48a excluding the straight side 48b
Since it has approximately the same diameter as the electron beam passage hole of the effective plate member 37a, it is possible to perfectly position both. Further, the bottom portion 40 of the dish-shaped perforated support member 37b is located approximately in the middle of the fifth grid 37 after assembly, and does not affect the formation of the electron lens in any way.
本発明のカラー受像管用電子銃の類似例として
は例えば特開昭55−1796号公報に示されている技
術があるが、この公報のものは電子ビーム通過孔
部を連通して穿設し、連接部には仕切り電極が設
置され、かつ電子ビーム通過孔部は非円形となつ
ている。これに対し本発明の電子銃においては電
子ビーム通過孔部は全て独立して穿設されてお
り、かつ仕切り電極などの補助部材は全く使用し
ていないし、また主電子レンズの形成部は厚肉の
有孔板状部材からなり、かつ皿状有孔支持部材に
は前述したような工夫が施されているため機械的
精度は極めて優れている。しかし公報のものは補
助部材を使用しているので機械的精度は望めな
い。 A similar example of the electron gun for a color picture tube according to the present invention is the technique shown in Japanese Patent Application Laid-open No. 1796-1983, but the technique disclosed in this publication has an electron beam passage hole formed in a continuous manner. A partition electrode is installed in the connecting part, and the electron beam passage hole part is non-circular. On the other hand, in the electron gun of the present invention, all the electron beam passage holes are formed independently, and auxiliary members such as partition electrodes are not used at all, and the main electron lens is formed with a thick wall. It is made of a perforated plate-like member, and the plate-like perforated support member is designed as described above, so that its mechanical precision is extremely excellent. However, since the disclosed method uses auxiliary members, mechanical accuracy cannot be expected.
次にネツク径22.5mmのカラー受像管に本発明の
電子銃を使用した時の具体的寸法を説明すると、
有孔板状部材３７ａの長手方向の長さは15.6mm、
短手方向の長さは6.4mmであり、電子ビーム通過
孔部４１ａ，４２ａ，４３ａの直径は4.68mm、中
心軸距離は4.98mm、板厚は3.0mmである。また皿
状有孔支持部材３７ｂの長手方向の長さは15.6
mm、短手方向の長さは6.4mm、電子ビーム通過孔
部４１ｂ，４２ｂ，４３ｂの中心軸距離は4.98
mm、中央の電子ビーム通過孔部４２ｂの直径及び
両側の電子ビーム通過孔部４１ｂ，４３ｂの直線
辺４８以外の部分４８ａの直径は4.68mmであり、
直線部４８ｂの長さは3.3mm、両直線辺４８ｂ間
の幅すなわち短径は3.2mmとなつている。 Next, we will explain the specific dimensions when the electron gun of the present invention is used in a color picture tube with a net diameter of 22.5 mm.
The length of the perforated plate member 37a in the longitudinal direction is 15.6 mm,
The length in the lateral direction is 6.4 mm, the diameter of the electron beam passage holes 41a, 42a, and 43a is 4.68 mm, the center axis distance is 4.98 mm, and the plate thickness is 3.0 mm. Further, the length in the longitudinal direction of the dish-shaped perforated support member 37b is 15.6
mm, the length in the short direction is 6.4 mm, and the center axis distance of the electron beam passage holes 41b, 42b, and 43b is 4.98 mm.
mm, the diameter of the central electron beam passage hole 42b and the diameter of the portions 48a of the electron beam passage holes 41b, 43b on both sides other than the straight sides 48 are 4.68 mm,
The length of the straight portion 48b is 3.3 mm, and the width between both straight sides 48b, that is, the short axis is 3.2 mm.
即ち従来知られているネツク径22.5mm用電子銃
の電子ビーム通過孔部の直径は3.9mm程度が最大
であるので約20％も拡大されており大幅はフオー
カス性能の向上が実現可能となつた。 In other words, since the maximum diameter of the electron beam passage hole of the conventionally known electron gun for a 22.5 mm net diameter is about 3.9 mm, it has been enlarged by about 20%, making it possible to achieve a significant improvement in focus performance. .
第７図及び第８図は第５グリツド３７の拡大図
であり、厚肉有孔板状部材３７ａ、皿状有孔支持
部材３７ｂ、皿状有孔支持部材３７ｂ及び厚肉有
孔板状部材３７ａの順に配設され、植設片４７を
電極支持体３９に植設することにより、第５グリ
ツド３７を形成させている。この時各厚肉有孔板
状部材３７ａと皿状有孔支持部材３７ｂとは例え
ば電子ビーム通過孔部に基準軸を挿入し、レーザ
溶接を用いて精度よく組合せることが出来るし、
また比較的長い第５グリツド３７を２対の植設片
４７で電極支持体３７に植設しているので機械的
安定が保持される。 FIGS. 7 and 8 are enlarged views of the fifth grid 37, including a thick-walled perforated plate-like member 37a, a dish-like perforated support member 37b, a dish-like perforated support member 37b, and a thick-walled perforated plate-like member. 37a, and by planting the implant pieces 47 on the electrode support 39, the fifth grid 37 is formed. At this time, each of the thick-walled perforated plate-like members 37a and the dish-like perforated support member 37b can be precisely assembled by inserting a reference shaft into the electron beam passage hole and using laser welding, for example.
Furthermore, since the relatively long fifth grid 37 is implanted in the electrode support 37 with two pairs of implant pieces 47, mechanical stability is maintained.
上述したように本発明のカラー受像管用電子銃
は外形を変えることなく、機械的精度が優れ、電
子レンズ口径を大幅に拡大することが可能であり
カラー受像管のフオーカス性能を著しく向上させ
ることができる。 As mentioned above, the electron gun for color picture tubes of the present invention has excellent mechanical precision without changing the external shape, and the electron lens aperture can be greatly expanded, so that the focusing performance of color picture tubes can be significantly improved. can.
前記実施例は複合形電子レンズ系を有する電子
銃について述べたがこれに限定されるものではな
く、他の型の電子銃にも適用されて皿状有孔支持
部材の両側の電子ビーム通過孔部の形状も小判形
に限定されるものではなく、電子ビームの通過を
防げることなく底部の機械的強度を良好とするよ
うな非円形であればよく、中央の電子ビーム通過
孔部も同様な形状にすることが可能なことは勿論
である。 Although the above embodiment describes an electron gun having a composite electron lens system, the present invention is not limited to this, and may be applied to other types of electron guns. The shape of the part is not limited to an oval shape, but may be any non-circular shape that improves the mechanical strength of the bottom without preventing the passage of the electron beam. Of course, it is possible to change the shape.
第１図乃至第３図は先願のカラー受像管用電子
銃の応用例を示す図であり、第１図は側面図、第
２図は厚肉有孔板状部材の斜視図、第３図は皿状
有孔支持部材の斜視図、第４図乃至第８図は本発
明のカラー受像管用電子銃の一実施例を示す図で
あり、第４図は側面図、第５図は厚肉有孔板状部
材の斜視図、第６図は皿状有孔支持部材の斜視
図、第７図及び第８図はそれぞれ第５グリツドを
電子ビーム通過孔部の配列方向及び配列方向に直
角にそれぞれ切断して見た断面図である。
１，３１……電子銃、２，３２……陰極、３，
３３……第１グリツド、４，３４……第２グリツ
ド、５，３５……第３グリツド、６，３６……第
４グリツド、７，３７……第５グリツド、７ａ，
３７ａ……厚肉有孔板状部材、７ｂ，３７ｂ……
皿状有孔支持部材、１１ａ，１２ａ，１３ａ，１
１ｂ，１２ｂ，１３ｂ，４１ａ，４２ａ，４３
ａ，４１ｂ，４２ｂ，４３ｂ……電子ビーム通過
孔部。
1 to 3 are views showing an application example of the electron gun for color picture tubes of the prior application, in which FIG. 1 is a side view, FIG. 2 is a perspective view of a thick-walled plate-shaped member with holes, and FIG. 4 is a perspective view of a support member with a dish-shaped hole, FIGS. 4 to 8 are views showing an embodiment of an electron gun for a color picture tube according to the present invention, FIG. 4 is a side view, and FIG. 5 is a thick-walled electron gun. FIG. 6 is a perspective view of the perforated plate-like member, FIG. 6 is a perspective view of the dish-like perforated support member, and FIGS. 7 and 8 show the fifth grid arranged in the direction in which the electron beam passing holes are arranged and at right angles to the direction in which they are arranged. FIG. 1,31...Electron gun, 2,32...Cathode, 3,
33...first grid, 4,34...second grid, 5,35...third grid, 6,36...fourth grid, 7,37...fifth grid, 7a,
37a... Thick-walled perforated plate member, 7b, 37b...
Dish-shaped perforated support member, 11a, 12a, 13a, 1
1b, 12b, 13b, 41a, 42a, 43
a, 41b, 42b, 43b...electron beam passage hole portions.
Claims (1)
上に収束するための主電子レンズを形成する電極
群を含む複数の電極を備えるカラー受像管用電子
銃に於て、前記主電子レンズを形成する少なくと
も１個の電極は厚肉有孔板状部材とこの厚肉有孔
板状部材を解放端縁部で支持する皿状有孔支持部
材とからなり、前記皿状有孔支持部材の底部に略
真円形状の中央電子ビーム通過孔と電子ビーム配
列方向を短径とする両側電子ビーム通過孔とを含
む３個の電子ビーム通過孔が一列に穿設されてな
ることを特徴とするカラー受像管用電子銃。1. In an electron gun for a color picture tube comprising a plurality of electrodes including a group of electrodes forming a main electron lens for converging three electron beams arranged in a row onto a phosphor screen, at least one electrode group forming the main electron lens The electrode consists of a thick-walled perforated plate-like member and a dish-like perforated support member that supports the thick-walled perforated plate-like member at its open edge, and is attached to the bottom of the dish-like perforated support member. An electron beam tube for a color picture tube characterized in that three electron beam passing holes are bored in a row, including a circular central electron beam passing hole and both side electron beam passing holes whose short axis is in the electron beam arrangement direction. gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP910081A JPS57123635A (en) | 1981-01-26 | 1981-01-26 | Electron gun for color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP910081A JPS57123635A (en) | 1981-01-26 | 1981-01-26 | Electron gun for color picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57123635A JPS57123635A (en) | 1982-08-02 |
| JPH029428B2 true JPH029428B2 (en) | 1990-03-01 |
Family
ID=11711197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP910081A Granted JPS57123635A (en) | 1981-01-26 | 1981-01-26 | Electron gun for color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57123635A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8302773A (en) * | 1983-08-05 | 1985-03-01 | Philips Nv | COLOR IMAGE TUBE. |
-
1981
- 1981-01-26 JP JP910081A patent/JPS57123635A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57123635A (en) | 1982-08-02 |
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